What does CPRI mean?

What does CPRI mean?

CPRI (Common Public Radio Interface) is a specification for wireless communication networks that defines the key criteria for interfacing transport, connectivity and control communications between Baseband units (BBUs) and remote radio units (RRUs), which are also called remote radio heads (RRHs).

What is difference between CPRI and eCPRI?

The Common Public Radio Interface (CPRI) is an interface that sends data from remote radio units to base station units. Enhanced CPRI (eCPRI) is a way of splitting up the baseband functions to reduce traffic strain on the fiber. Currently telcos use CPRI interface as fronthaul connection in 4G.

Is CPRI packet based?

Ethernet. Today there are two main technologies to packetize CPRI: Mapping the CPRI frames into ethernet packets, called Radio over Ethernet (RoE) Convert the CPRI streams into eCPRI by baseband processing.

What is a fronthaul connection?

Fronthaul, also known as mobile fronthaul, is a term that refers to the fiber-based connection of the cloud radio access network (C-RAN), a new type of cellular network architecture of centralized baseband units (BBUs) and remote radio heads (RRHs) at the access layer of the network.

Is CPRI a protocol?

It is a protocol of choice for fronthaul communications between towers and base stations (BSs) through several generations of wireless networks. CPRI has efficient and flexible I/Q data interfaces for various standards, such as GSM, WCDMA, LTE, etc.

What does an RRU do?

A remote radio head (RRH), also called a remote radio unit (RRU) in wireless networks, is a remote radio transceiver that connects to an operator radio control panel via electrical or wireless interface. When used to describe aircraft radio cockpit radio systems, the control panel is often called the radio head.

Is CPRI proprietary?

Historically, because each vendor would have its own implementation of CPRI, it became proprietary, said Maupile. This forces carriers to buy both their RRUs and their baseband unit from the same vendor in order for the interface to work.

Why is massive MIMO 5G?

Massive MIMO can increase the capacity 10 times or more and simultaneously, improve the radiated engergy-efficiency in the order of 100 times. Massive MIMO can be built with inexpensive, low-power consumption. Massive MIMO enables a significant reduction of latency on the air interface (due to robustness against fading …

What is fronthaul and backhaul in 5G?

Backhaul is a widely known term that describes the link between a baseband and the core network. Fronthaul, on the other hand, connects the baseband to a remote radio unit. As it relates to small cells, operators are increasingly centralizing baseband resources and using fronthaul to connect a cluster of radios.

Is 5G packet based?

Standards for 5G – the fifth generation of mobile communications networks – have developed at an unprecedented rate, and that pace will only accelerate now the first phase of 3GPP standards for 5G New Radio (NR) have been released.

What is 5G backhaul?

What is 5G Backhaul? The backhaul of a network consists of links from the core network to subnetworks. In 5G, the mobile network must be linked to the wired network through the backhaul. Thus, 5G backhaul refers to the signal between the 5G core and remote sites or networks.

What is 5G architecture?

5G is effectively a dynamic, coherent and flexible framework of multiple advanced technologies supporting a variety of applications. 5G utilizes a more intelligent architecture, with Radio Access Networks (RANs) no longer constrained by base station proximity or complex infrastructure.

What does Fronthaul and backhaul mean?

Mobile backhaul refers to the transport network that connects the core network and the RAN (Radio Access Network) of the mobile network. Recently, the introduction of small cells has given rise to the concept of fronthaul, which is a transport network that connects the macrocell to the small cells.

What is Fronthaul and Midhaul?

In fact, Fronthaul refers to the network that connects remote radio heads to BBUs many kilometers away, while Midhaul refers to the link between the DU and CU, and finally the Backhaul is representing the link between the CU and the core network.

What is Fronthaul and backhaul in shipping?

The otherwise regular trucking strategy for freight delivery is one way – from point A to point B. This movement of load from point of departure to that of the destination is called Fronthaul. On the other hand, when trucks bring in load on their journey back – from point B to point A – its called backhauling.

What is 5g AxC?

AxC is the short form of Antenna Carrier in CPRI standard. Definition: The CPRI standard defines AxCs (antenna carriers) for transmission and reception of the digital I/Q data. An AxC is a container for one I/Q sample.

What is the meaning of CPRI YouTube?

Common Public Radio Interface (CPRI) – YouTube.

What is radio equipment control?

Specification of Radio Equipment Control (REC) and Radio Equipment (RE) The Common Public Radio Interface (CPRI ) is an industry cooperation aimed at defining a publicly available specification for the key internal interface of radio base stations between the Radio Equipment Control (REC) and the Radio Equipment (RE).